
The facts.
| Part number | Z-B005-EX (EAN 4950545767882) |
|---|---|
| Pad code | ZRM-B005C |
| Compound | ZCOO EX Race - ceramic-sintered |
| Pad dimensions | 102.2 x 42.0 x 8.05 mm (L x H x thickness) |
| Caliper family | Brembo |
| Position | Front axle only |
| Fitment | QJMotor SRK 921 RR, 2026-2026 |
| Contents per pack | 1 set = 2 pads for one caliper; a machine with twin front discs needs two packs |
| Road approval | No ECE R90 type approval documented - track and competition use |
| Manufacturer | Okada Corporation, Japan |
DescriptionThe whole story▼
On the QJMotor SRK 921 RR the front tyre, not the brake, sets the limit. The SRK 921 RR takes the B005: a 8.05 mm stack of ceramic-sintered material across 102.2 by 42.0 mm. The B005 carries EX Race, the control-oriented of ZCOO's two ceramic mixtures.
Key Features
- Ceramic sintering keeps the coefficient of friction stable across the temperature swing a SRK 921 RR sees in a single descent
- Wear indicator geometry unchanged from the standard Brembo pad, so the usual inspection still applies on the SRK 921 RR
- The B005 is made by Okada Corporation in Japan, the manufacturer behind ZCOO's endurance-racing programme
- No proprietary tooling needed: the B005 drops into the Brembo caliper the SRK 921 RR already has
- Direct replacement for the standard Brembo pad on the QJMotor SRK 921 RR - no shims, no spacers, no modification
- The B005 shape also serves 117 further machines in the ZCOO 2026 catalogue, so availability stays good
Construction and Material Quality
The B005 is made by Okada Corporation in Japan. On the B005 the ceramic material is sintered onto a laser-cut metal plate rather than pressed against it. The result on the QJMotor SRK 921 RR is a pad that wears evenly rather than tapering from one edge.
Performance and Feel
The initial bite of the B005 in EX Race is measured rather than sharp. In exchange for a modest first bite the B005 gives the same bite on the tenth stop as on the first. Over a session on the QJMotor SRK 921 RR that consistency is worth more than any single hard stop.
Fitment and Compatibility
For the QJMotor SRK 921 RR, 2026, on the Brembo fitment. The same B005 shape covers 117 further machines in the 2026 catalogue. Front axle only. Before ordering, check that your caliper takes a pad of 102.2 mm length and 42.0 mm height.
Road Approval
No ECE R90 type approval is documented for this pad. It appears neither in ZCOO's own catalogue nor on the European distributor's site, and no approval number is printed on the packaging data available to us. ZCOO itself describes the compound as suited to competition machines and road machines alike, but that is a description of the mixture, not a type approval. Until the distributor confirms an approval in writing, treat this as a track and competition part: in Germany a replacement brake pad without ECE R90 approval may not be fitted to a motorcycle used on public roads. Ask us before ordering if you need this clarified for your machine.
Specifications
- Part number: Z-B005-EX (EAN 4950545767882)
- Pad code: ZRM-B005C
- Compound: ZCOO EX Race - ceramic-sintered
- Pad dimensions: 102.2 x 42.0 x 8.05 mm (L x H x thickness)
- Caliper family: Brembo
- Position: Front axle only
- Fitment: QJMotor SRK 921 RR, 2026-2026
- Contents per pack: 1 set = 2 pads for one caliper; a machine with twin front discs needs two packs
- Road approval: No ECE R90 type approval documented - track and competition use
- Manufacturer: Okada Corporation, Japan
What's includedEverything in the box▼
- 1 set = 2 ZCOO B005 EX brake pads for one caliper
FitmentWhich bikes this fits▼
- QJMotor SRK 921 RR (2026–2026)
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